摘要:
A polishing apparatus 70 is used for polishing a workpiece such as a semiconductor wafer to a flat mirror finish by a combination of chemical polishing and mechanical polishing. The polishing apparatus includes a turntable 73 with a polishing 74 cloth mounted on an upper surface thereof, a top ring 75 for supporting the workpiece to be polished and pressing the workpiece against the polishing cloth, and a dressing tool 79 for dressing the polishing cloth on the turntable. The polishing apparatus further includes a cover 10 which covers an upper surface of the turntable for preventing liquid on the turntable from being scattered, and inserting holes 17 and 21 formed in an upper wall of the cover for inserting the top ring and the dressing tool therethrough.
摘要:
A polishing apparatus is used for polishing a workpiece such as a semiconductor wafer to a flat mirror finish. The polishing apparatus includes a turntable having a polishing surface thereon, a top ring, for holding a workpiece to be polished and pressing the workpiece against the polishing surface, which is movable between a polishing position inside of the turntable and a standby position outside of the turntable, and a first device for keeping at least a lower surface of the top ring wet while the top ring is in the standby position. The polishing apparatus further includes a dressing tool for dressing the polishing surface on the turntable, and a second device for keeping at least a lower surface of the dressing tool wet while the dressing tool is in a standby position.
摘要:
A polishing apparatus is used for polishing a workpiece such as a semiconductor wafer to a flat mirror finish by a combination of chemical polishing and mechanical polishing. The polishing apparatus includes a turntable with a polishing cloth mounted on an upper surface thereof, a top ring for supporting the workpiece to be polished and pressing the workpiece against the polishing cloth, and a dressing tool for dressing the polishing cloth on the turntable. The polishing apparatus further includes a cover which covers an upper surface of the turntable for preventing liquid on the turntable from being scattered, and inserting holes formed in an upper wall of the cover for inserting the top ring and the dressing tool therethrough.
摘要:
A polishing apparatus is used for polishing a workpiece such as a semiconductor wafer to a flat mirror finish. The polishing apparatus has an exhaust device for exhausting air in the polishing apparatus. The polishing apparatus includes a housing, a polishing section housed in the housing for polishing a workpiece, a cleaning section housed in the housing for cleaning the workpiece which has been polished, and a base comprising a plurality of structural members for supporting at least one device in at least one of the cleaning section and the polishing section. At least one of the structural members has a fluid passage therein and intake openings to serve as an exhaust duct. The polishing apparatus further comprises a main exhaust duct communicating with the exhaust duct and extending to an exterior of the housing for exhausting air introduced in the exhaust duct.
摘要:
A polishing apparatus has a turntable with an abrasive cloth mounted on an upper surface thereof and a top ring disposed above the turntable for supporting a workpiece to be polished against the abrasive cloth under predetermined pressure. The turntable is rotatable by a first motor through a timing pulley connected to the first motor, and the top ring is rotatable by a second motor through a timing pulley connected to the second motor. A torque detector incorporated in the timing pulley connected to at least one of the first motor and the second motor detects an output torque produced by the at least one of the first motor and the second motor.
摘要:
A polishing apparatus includes an arrangement of a plurality of units to deal with various operations and a robot having at least one arm. The plurality of units are disposed around the robot and include a loading unit for receiving thereon a, e.g. dry, workpiece to be polished, a polishing system including at least one polishing unit for polishing the workpiece, a washing system and a drying system at least including one washing unit for washing and drying the polished workpiece, and an unloading unit for receiving thereon a resultant clean and dry polished workpiece.
摘要:
A polishing apparatus for polishing a surface of a workpiece includes a housing unit, a partition wall partitioning an interior of the housing unit into a first chamber and a second chamber, a polishing section disposed in the first chamber and having a turntable with an abrasive cloth mounted on an upper surface thereof and a top ring positioned above the turntable for supporting the workpiece to be polished and pressing the workpiece against the abrasive cloth, and a cleaning section disposed in the second chamber and cleaning the workpiece which has been polished. The polishing apparatus further includes a transferring device for transferring the workpiece which has been polished from the polishing section to the cleaning section through an opening and an exhaust system for exhausting ambient air from each of the polishing section and cleaning section separately and independently.
摘要:
A polishing apparatus is used for polishing a workpiece such as a semiconductor wafer to a flat mirror finish. The polishing apparatus, includes a turntable having a polishing surface thereon, and a top ring for holding a workpiece to be polished and pressing the workpiece against the polishing surface on the turntable. A pusher is disposed in a position for transferring the workpiece to and from the top ring, and has a workpiece support which can be lifted to a position close to the top ring for transferring the workpiece to and from the top ring. When the workpiece support receives a polished workpiece and is lowered, a cleaning liquid is ejected substantially simultaneously from three cleaning nozzle units that are disposed in respective three positions to clean the upper and lower surfaces of the workpiece and the lower surface of the top ring.
摘要:
A polishing apparatus is used for polishing a workpiece such as a semiconductor wafer to a flat mirror finish. The polishing apparatus includes a polishing section for polishing a surface of a workpiece, a cleaning section for cleaning the workpiece which has been polished, a first liquid leakage sensor provided in the polishing section for detecting a liquid leakage which occurs in the polishing section, and a second liquid leakage sensor provided in the cleaning section for detecting a liquid leakage which occurs in the cleaning section. The polishing apparatus further includes a controlling device for stopping the supply of liquid to the polishing section or the cleaning section in which the liquid leakage occurs when either one of the first and second liquid leakage sensors detects the liquid leakage.
摘要:
A polishing apparatus for polishing a surface of a workpiece includes a housing unit, a partition wall partitioning an interior of the housing unit into a first chamber and a second chamber, a polishing section disposed in the first chamber and having a turntable with an abrasive cloth mounted on an upper surface thereof and a top ring positioned above the turntable for supporting the workpiece to be polished and pressing the workpiece against the abrasive cloth, and a cleaning section disposed in the second chamber and cleaning the workpiece which has been polished. The polishing apparatus further includes a transferring device for transferring the workpiece which has been polished from the polishing section to the cleaning section through an opening and an exhaust system for exhausting ambient air from each of the polishing section and cleaning section separately and independently.